Sirius 31 Buyer's Guide
Shopping the brokerage market for a Sirius 31 means looking at a comparatively rare German cruiser with a devoted following and a clear lineage. Built from the early 1980s through 1991 with around 170 hulls in the core shape, the design began as a private development and later gained a popular deck-saloon sister using the same hull. Most used examples carry a lead keel and a Volvo 2002 diesel, and the original yard still supports them with parts and the stern-extension retrofit.
Layouts on the Used Market
Two principal layouts reach buyers. The original version shows a classic saloon around a large table, fixed doors instead of loose bulkheads, dark teak wall panelling, and a pull-out washbasin in the wet room. A pull-out navigation table sits above the starboard dog bunk. The later deck-saloon model keeps the same hull but adds the raised trunk for more light and standing room. Both share a deep, protected cockpit with wooden detailing and a fixed windscreen, and both may show the early long Plexiglas side panes or the yard’s later oval aluminium-framed windows.
Equipment and Common Upgrades
Well-equipped cruisers of this class commonly carry a heating system, a chartplotter, solar panels, an inverter, AIS, autopilot, and a life raft as standard brokerage fitments. For a buyer, the meaningful clusters are power and energy — heating, solar, and inverter together define off-anchor comfort and battery autonomy — and navigation and safety, where chartplotter, AIS, and autopilot reduce watch stress while a life raft speaks to offshore intent. A shipyard stern extension with integrated swim ladder and step is still offered and appears on a good number of boats; it also quieted the engine and improved the under-power stall.
What to Inspect
The teak deck is very often fitted and must be checked critically for condition anchor. Leaks can trace to deck breakthroughs cut by previous owners through the balsa-cored deck where sealing was poor, so examine those penetrations closely. Old screwed windows are a known leak path. Confirm the engine’s condition and age, and on centreboard examples verify the board’s operation. The absence of an inner shell is an advantage here: any leakage tends to show before it hides. Osmosis is not a known issue on the design.
Availability and Buyer's Takeaway
These boats are typically found in the Netherlands and Germany. For the shopper, the short list is: confirm teak-deck condition and any owner-added deck penetrations; test centreboard function if fitted; verify window sealing; assess engine age; and prefer a yard-supported stern extension if quiet motoring and a swim step matter. The Sirius 31 rewards a careful survey with a solid, harmonious cruiser that the original builder can still service.
Price & volume trends
Monthly asking-price and listing-volume trends for the Sirius 31. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 2 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Mar 26 | 1 | $40,204 | — |
| Apr 26 | 1 | $58,150 | +44.6% |
Where they're listed
Sirius 31 listings appear across 2 countries. Germany has the most listings with 1 (50.0%), followed by Netherlands.
Country view
2 listings · 2 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| Germany | $58,150 | 1 | 0 | 50.0% |
| Netherlands | $40,204 | 1 | 0 | 50.0% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
3 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Westerly Berwick 31 | 31' | $ 12,917 | 21 | 4 |
| Rustler 31 | 31.42' | $ 17,676 | 14 | 0 |
| Sirius 31You are here | — | $ 49,177 | 2 | 0 |